Coke-oven.



N. SCHUSTER.

COKE OVEN. wnmaum HLED UtC. 2:, 19H.

PutontvdJune 13, 1916.

3 SHEETS-SHEET l-.

fi IWW, V I

I AM /(M N. SCHUSTER COKE OVEN.

APPLICAYION FILED 05c.

5Q Wym NICHOLAS SCHUSTER, OF WESTMINSTER, LONDON, ENGLAND.

COKE-OVEN.

Specification of Iietters Patent.

Patented June 1 3, 1916.

Application filed December 21, 1914. Serial No. 878,420.

T all whom it may concern.

Be it known that I, NICHOLAS Sonusrsn, subject of the Emperor ofGermany, residing at 7 Princes street, in the city of VVestminster,London, England, have invented certain new and useful Improvements inCoke-Ovens, and of which the following is a specification.

This invention relates to coke ovens of that type in which the gas forcombustion is admitted through passages in the structure below theheating fines, and in which flues, running parallel with the said gaspassages and also below the heating flues, serve for the exit of theproducts of combustion.

The primary object of the present invention is to provide means wherebythe gas for combustion admitted to a coke oven sh all not become toohighly heated during its flow in the passages beneath the ovens. It isknown that if the gas introduced for combustion reaches too high atemperature, de-

composition and deposits of free carbon are brought about by the radiantheat prior to the gas passing into the combustion chambers.

Where passages through which the gas for combustion is introduced intothe combustion flues of a. coke oven, extend any considerable depth intothe structure, and where such gas passages are at intervals throughouttheir length formed with delivery nozzles or apertures at intervalsapart through which the gas passes into the combustion fines, thepressure of the gas so delivered into the heating flues through nozzlesis greater adjacent to the entrance of the gas passages, and diminishestoward those ends farthest away from the supply, and a further object ofthe present invention is to provide an improved construction by whichthis disadvantage can be entirely or in great part overcome, and at thesame time to so locate the exit nozzles from the gas passage-srelatively to the surrounding structure, that the said gas exit nozzlescannot be choked by falling" dust or other debris. According to this inention, in order to prevent the gas, passing through the gas admittancepassages in the structure, becoming too highly heated. I provide,adjacent and parallel to such passages, a cooling passage extendingentirely through the structure and arranged between each gas pas sageand exit flue for the products of combustion, the cooling passages beingopen to the atmosphere, and in some cases I connect such air coolingpassages at some point in between their ends with one or moreof thefines in the oven which is in communication with the uptake, so that acurrent of cool air is automatically drawn through said air coolingpassages.

11 order to regulate the flow of gas for combustion to the combustionflues, I make the passage extending into the structure, into which thegas for combustion is admitted, tapering at that end farthest away fromthe supply, that is to say the inner end of the passage is formed ofgradually decreasing cross sectional area, and in conjunction with suchan arrangement I in some cases provide an auxiliary parallel passagesupplied at its outer end with combustible gas and communicating at itsinner end with and near to the inner end of the first mentioned gaspassage so as to provide an auxiliary supply of gas to the main orprincipal gas passage. Beyond this I locate the nozzles of the gaspassages within a chamber having inwardly and'upwardly inclined sidewalls, one of the walls overhanging the nozzles, and I providewithin thechamber, a recess parallel to the nozzles to receive any debris, all ashereafter described.

I will describe my invention with refer- I once to the accompanyingdrawings which show an example of construction and arrangement asapplied to a regenerative coke oven of the kind referred to in my Patentapplication No. 878,419, of even date herewith.

Figure 1 is a longitudinal section of the right hand half of thestructure, this section being taken through the heating fines in one ofthe side walls between two ovens, and Fig. 1 shows the left hand half ofthe same coke oven, this section being taken through the adjacent cokingchamber. Fig. 2 is a transverse vertical section of the structure takenabout tlie,line X-Y of Fig. 1 and drawn to a slightly larger scale thanthe latter figure. Fig. 3 is a horizontal section taken about the lineXY of Fig. 2.

Referring to the drawings, particularly Figs. 1, 1 and 2, the gas inletpassages 1 extend from the exterior face of the s'ti ucture beneath thecombustion lines 2 in each side wall 3 dividing the coking chambers 4;and in the construction shown the saidgas passages l terminate justbefore reaching the lot , the passages 16, and therefore indirectlycenter of the combustion fines in the sine .Walls as shown at Fi 1, undother similar gas passages extend from the opposite exterior face of thestructure. Gas is supplied to the passages 1 from the main 5 through apipe 6 and nozzles 7 controlled by cocks 8. Each passage 1 in thestructure pro vided or formed with delivery nozzles or apertures 9,through which the gas passes into the combustion fines 2, and by renleting the cocks 5: gas can be admitted t the right hand half of thecombustion tlues, h .l, and shut off from the other half, l or viceAccording to the present invention cooling passages 24: are formed inthe structure one on each side of the gas passages 1 and extendingparallel therewith, the said cooling passages 24, as snown in Fig. 3,being opennt their ends to the atmosphere and extending entirely throughthe structure between the said gas passages 1 and passages 16, throughwhich passages 16 the products'cf combustion pass. The cooling passages24 may also be connected by pa$ages 25-With with the uptake, andconsequently a current of cool air flows through the cooling passages 24from the open ends thereof, and maintains the gas passing through thegas passages 1 at a temperature below the point at which decompositionot the heating gas sets in. say about 420 C.

In the particular'coke oven to which the invention is shown applied inthe drawings merely by way of example, each of.thc pas sages 1G isconnected by a passage such as 17, Figs. 1 and 3, with one of aplurality of rcgcncrntiinr chmnbers formed in two pairs of tunnels 19,Fig". 1, 1 and 2, constructed in the base of the structure, the said pussages 1G beneath the sole of the coking chamber being connected bypassages 18, Figs. 1 and 2, Iith the bases of thecombustion fines 2, sothat of the two passages 16 under one of the coking chambers forinstance, one of the said passages serves for the admittance of heatedair from n regenerating chamber, while the other passage 16 at the sameperiod serves for the exit of the products of combustion, which latterpass through another regenerating chamber; at another period thefunctions of the passages 16 are reversed.

Each of the gas passagesl formed in the structure upon opposite sides,isconstructed of uniform cross sectional area for the greater part ofits length, and its end farthest away from the supply is formed tapering as at 26 Fig. 1, whereby I am e sbled to equalize the pressure andlion of the gas through the nozzles 9. I further in some cases providean auxiliary passage fed through th' upply pipe 6, the said pus- 2?openin o 1 Where the :on'niuinces,

istens? n auxiliary supply of gas to u'ith inciined side walls ach otherbefore they reach l cm 'icr into the 1mm at Fig. 2, and hat one of theside Walls 1 and at the opposite 1 form a recess in the or, mhcr willfall into the not tend to choke the nozzles 9. the umber opens into thethe said chamber may be slightly, as indicated at my invention anddesire L tters Patent is:

inning in combination a series wiring chzunbers formed therein o her,the side walls of said u'h ha a. heating flue .srein, s d structurehaving comicuctibie gas suppiy passages communicatwith each heating flueand extending in the. structure below said heating lines, means forupplying suidgns to said gas suppiy pnsse es and for controlling saidgas suppiy, tines for the exit of products of combustion extendingbeneath said coking, chambers running parallel with .said gas passagesand communicating with said heating fines, said structure being formed\i'it-h air cooling passages each passing entirely through sci structurebeing open at both ends to the each Sid: t s.,id gas passages andbetween said gas passages and said fines through products of combustionpass, in order 19 gas passing through said at a temperature below the u'hich decomposition of said gas sets In a coke oven of thetypespecified; a structure having in combination a series of separate cokingchambers formed therein parallel lo each other, the side walls of saidcoking chambers each having a' heating lluc formed therein, saidstructure having combustible supply passages communicating: "with eachheating fine and cx'tcndin; in the structure below said heating fine.means for suppiyingz said to said gas supply passages mid torcontrolling said gas supply, fin 1 for exit of products of combustionextending be earth said coking chambers ilel with said ens passages andwith said heating fines, said iOKiliQCi with air cooling pas i I locatethe said bris, so that debris ,tmosphere and located one on sages eachpassing entirely through said structure being open at both ends to theat mospherc and located one on each side of said gas passages andbetween said gas passages and said lines through which products ofcombustion pass, said structure having passages communicating betweensaid air cooling passages and the said lines through which the productsof combustion pass,

3.111 a coke oven of the type specified; a structure having incombination a series of separate coking chambers termed therein parallelto each other, the side walls of said coking chambers each having aheating flue formed therein, said structure having combustible gassupply passages extending therein below each heating flue, said gassupply passages having delivery nozzles, a

chamber having inclined side walls above said delivery nozzles locatedbelow the base of the heating fines and having a passage to convey gasfrom said nozzles to said heating tlucs, one of the walls of saidchamber being inclined to overhang said gas nozzles. means for supplyingsaid gas to said gas supply passages and for controlling said gas supply. fines for the exit of products of combustion extending beneath saidcoking chambers running parallel with said gas passages andcommunicating with said heating fines. said structure being formed withair cooling passages each passing entirely through said structure beingopen at both ends to the atmosphere and located one on each side of saidgas passages and between said gas passages and said fines through whichproducts of combustion pass, in order to maintain the gas passingthrough said gas passages at a temperature below the point at whichdecomposition of said gas sets in.

4. In a coke oven ot the type specified; a structure having incombination a series 0 separate coking chambers formed therein parallelto each other, the side walls of said coking chambers each having aheating flue formed therein, said structure having coin bustiblc gassupply passages extending therein below each heating tlue, said gassupply passages having delivery nozzles a chamber having inclined sidewalls above said delivery nozzles located below the base of the heatingfines and having a passage to ci'invey gas from said nozzles to saidheating fines. one of the walls of said chamber being inclined tooverhang said gas nozzles. said chamber with which said gas nozzlescommunicate having a, recess formed in its base and extending below theexit end oi said gas delivery nozzles to receive debris, means forsupplying said gas to sa d gas supply passages and for controlling saidgas supply, lines for the exit of products of combustion extendingbeneath said coking chambers running parallel with said gas passages andcommunicating with said heat ing fines, said structure being formed withair cooling passages each passing entirely through said structure beingopen at both ends to the atmosphere and located one on each side of saidgas passages and between said gas passages and said lines through whichproducts of combustion pass, in order to maintain the gas passingthrough said gas passages at a temperature below the point at\vhichfdecomposition of said gas sets in.

5a In a coke oven of the type specified; a

' structure having in combination a series of separate coking chambersformed therein parallel to each other, the side walls of said cokingchambers each having a heating flue termed therein, said structurehaving combustible gas supply passages communicating with eachheatingline and extending in the structure below said heating line, said gassupply passages being each of uniform cross secticmal area for thegreater part of its length extending from the exterior of the structurebut oi gradually toward its inner end. means for supplying said gas tosaid gas supply passages and for controlling said gas supply. tines forthe exit of;v products of combustion extending beneath said cokingchambers running parallel with said gas passages and communicating withsaid heating incsfsaid structure being formed with air cooling passageseach passing entirely through said structure being open at both ends tothe atmosphere and located one on each side of said gas passages andbetween said gas passages and said tines through which products otcombustion pass in order to maintain the gas passing through said gaspassages at a temperature below the point at which decomposition of saidgas sets in.

(3. In a coke oven of the type specified; a structure having incombination a series of separate coking chambers formed therein parallelto each other; the side walls of said coking chambers each having aheating i'luc tormed therein. said structurc ha vingcombnstible gassupply passages communicating with each heating line and extending inthe Structure below said heating flue. said gas supply passages beingeach of uniform cross sectional area for the greater part of its lengthextending from the exterior of the structure but of graduallydccrcasingairea toward its inner end. said structure halving anauxiliary gas supply passage formed therein parallel to each of saidprincipal gas supply passages and communicating therewith near the innerend ol' the latter, means for s-i1pplying said gas to said gas supplypassages and for contiolling said gas supply, fines for the exit ofproducts of combustion extending beneath said coking chambers runningparallel with san gas passages and communicating with saidjlieatdecreasing area iii. both um! lmulwi' um: um

gm nns oint at uhjvh Wis :11.

In WillliSS \vhm'vnl' I my hum! in the ducmnpmitiou of said gas 13 humhvH-unfu s01; prusunr-v ul' twn witnussvs. NICHOLAS SCHUSTIIR.

W111. m M A. M A us: IALL.

